METHYL GREEN
- CAS No.
- 54327-10-5
- Chemical Name:
- METHYL GREEN
- Synonyms
- CI 42585;CI NO 42585;CI NO 42590;PARIS GREEN;LIGHT GREEN;DOUBLE GREEN;BASIC BLUE 20;DOUBLE GREEN SF;CI BASIC BLUE 20;1%aqueoussolution
- CBNumber:
- CB8110846
- Molecular Formula:
- C26H33Cl2N3
- Molecular Weight:
- 458.47
- MDL Number:
- MFCD00011879
- MOL File:
- 54327-10-5.mol
| Melting point | >300°C |
|---|---|
| solubility | Solubility Soluble in water, ethanol; insoluble in xylene |
| form | powder |
| color | Green crystalline |
| PH Range | Yellow (0.1) to greenish-blue (2.3) |
| λmax | 635nm, 420nm |
| Major Application | Liquid crystal display device, photography, recording materials, inks, cosmetics, DNA staining, cancer detection |
| FDA UNII | X4916E1P1M |
METHYL GREEN Chemical Properties,Uses,Production
Definition
ChEBI: Methyl green is an iminium salt composed of (4-{[4-(dimethylamino)phenyl][4-(trimethylazaniumyl)phenyl]methylidene}cyclohexa-2,5-dien-1-ylidene)(dimethyl)ammonium and chloride ions in a 1:2 ratio. A histological dye used to demonstrate nucleic acids by the Unna-Pappenheim stain, in conjunction with Pyronin Y. It has a role as a fluorochrome and a histological dye. It is an organic chloride salt, an iminium salt and a quaternary ammonium salt. It contains a methyl green(2+).
Synthesis
Cupric oxide is heated with 8% acetic acid, As2O3 is added, and the mixture is refluxed for two hours. The product is allowed to cool for half an hour, filtered, washed and dried.Alternate method: Dilute acetic acid is allowed to react with an excess of freshly precipitated Cu(OH)2 and the product is separated by filtration. Dilute acetic acid is added to a solution of As2O3 in boiling NaOH until the color of phenolphthalein disappears. The hot solutions are mixed (mole ratio of CuO:As2O3 = 4:3) and allowed to stand for several days [S. Avery, J. Amer. Chem. Soc. 28, 1159 (1906)].
METHYL GREEN Preparation Products And Raw materials
Raw materials
Preparation Products
METHYL GREEN Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Merck Millipore | 1-400-889-1988 400-889-1988 | bioscience@merckgroup.com | China | 40582 | 58 |
| Supplier | Advantage |
|---|---|
| Merck Millipore | 58 |
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